Square Cushion Cut Mostly Blue Tanzanite 2.39 CaratsWeight: 2. 39cts Color: 90% Blue 10% Violet Cut: Square Cushion Size: 8. 2mm wide x 8. 1mm long x 5. 2mm deep Clarity: VS1 Rating: 961 1000 Treatment: Heated Cut Grade: Very Good One 2. 39 carats square cushion tanzanite, violet blue exceptional (10%violet 90%blue) color, VS1 clarity, cut grade very good, measuring 8. 2 mm wide, 8. 1 mm long, 5. 2 mm deep; with very good polish and very good symmetry. The overall quality rating of this tanzanite is